#0  0x00007f8a8298fd41 in gvc_mixer_ui_device_set_profiles (device=<optimized out>, in_profiles=0x7f8a8cee97a0) at gvc-mixer-ui-device.c:514
        t = <optimized out>
        profile_descriptions = 0x0
        is_input = -1869186176
        is_output = <optimized out>
        identical = <optimized out>
        shortened_profiles = <optimized out>
        x = <optimized out>
        y = <optimized out>
        final_keys = <optimized out>
        o = <optimized out>
#1  0x00007f8a829970b8 in gvc_mixer_control_change_output (control=0x7f8a90c76520, output=<optimized out>) at gvc-mixer-control.c:587
        stream = 0x7f8a82996d22
        default_stream = <optimized out>
        active_port = 0x7f8a90967b80
        output_port = 0xffffffff8e504a80 <Address 0xffffffff8e504a80 out of bounds>
#2  0x00007f8a82982046 in _gtk_label_make_bold (label=0x0) at gvc-mixer-dialog.c:1416
        font_desc = 0x7f8a909d6020
#3  0x00007f8a9095c600 in ?? ()
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.